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esri-mcp

MCP server exposing ArcGIS data and services (AGOL + Enterprise) as tools for LLM agents

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Data offered docs-verified: ArcGIS layer and table listing · layer metadata and field names · attribute and spatial feature queries · address geocoding · reverse geocoding · ArcGIS portal item search and details
Formats docs-verified: MCP stdio
Access docs-verified: No credentials needed for public services (anonymous access). Secured content requires one of: API key, OAuth2 client credentials, legacy token, standalone server token, or IWA/NTLM. Licence: MIT.

Use cases llm-inferred: FRA baseline layer discovery and attribute queries against a council or Enterprise ArcGIS REST service · Geocoding site addresses and reverse-geocoding coordinates for a desk study · Pulling constraint layers from an ArcGIS service into a drainage or BNG screening review
Audience llm-inferred: GIS analysts · flood consultants · environmental consultants · planners

Constraints docs-verified: Read-only: write operations (applyEdits, delete, publish) are out of scope for v1 · Queries capped at 5,000 records per request · Geocoding uses the AGOL World Geocoder unless ARCGIS_GEOCODER_URL is set · Portal search tools do not apply to standalone ArcGIS Server · Only stdio transport is available; streamable-http is on the roadmap · Write operations are roadmap only, behind a planned ESRI_MCP_ALLOW_WRITES gate

Licence: MIT
Authentication: API key via env: ARCGIS_API_KEY, ARCGIS_CLIENT_ID, ARCGIS_CLIENT_SECRET, ARCGIS_PASSWORD, ARCGIS_USERNAME (auto-extracted from README)
GitHub stars: 3
Last commit: 11/06/2026
Last successful page check: 14/10/2026
Page health: healthy
Package: Not recorded
Verification: Not independently verified

Auto-extracted, unverified fields: tools, install, auth. Check upstream documentation.

Tools/install/auth auto-extracted from README; quality score heuristic (stars, recency, tool count, licence).

Metadata observed 15/10/2026 · research sweep: github-search